The relative movement between the shaft and the bearing sliding bearings

The relative movement between the shaft and the bearing sliding bearings, linear plain bearings called. Bearing basic structure is divided into the bush and the journal. Rolling bearing on the most essential difference and that a point contact, one face Contacts, will have advantages and disadvantages in nature. Plain bearings can be used lubricating oil, grease, water, lubrication, etc..
Compared with the rolling bearings, sliding bearings advantages: 1, high carrying capacity; large contact area causes; 2, simple structure, easy manufacturing, processing, demolition; 3, good impact resistance and good vibration performance, smooth operation, high rotational accuracy. Disadvantages: 1, the maintenance complex, demanding lubrication conditions; 2 boundary lubricated bearings, friction and wear bigger. (This is also the disadvantage of a large contact area)